Comment 229 for bug 930447

On 27 November 2013 10:42, roland aus köln <email address hidden> wrote:
> i don`t have the skills for this and i don`t understand, why hpa
> forwarded discussion to lkml at this early stage, as it is a patch
> primary meant for the ubuntu kernel to adress an ubuntu specific
> problem.
>

I understand your concern. The fact that certain CPUs are buggy and do
not declare PAE capability is a hardware bug which cannot be rectified
and if quirks are needed on the kernel side, the right way is to
essentially white-list / set PAE options of the affected CPUs.

ubuntu kernels do not typically apply original patches, mostly only
cherrypicks from upstream trees/vendors.

> sure it is not perfect and not the optimal way to proceed, but it is a
> solution to a problem.
>
> we wouldn`t have this problem and we wouldn`t have this patch if there
> wasn`t the discision to drop support for non-pae kernels.
>
> so hopefully the ubuntu kernel maintainers will give a comment on this
> patch or pick it up to make a version which fulfils kernel code-
> quality/style or patch-submission requirements.
>
> this patch is rather unintrusive and it easily solves a problem for many
> users. i spend many hours on debugging this issue and developing this
> patch, so for now please understand that i`m done with it.
>
> lkml reference: http://marc.info/?l=linux-kernel&m=138550884425543&w=2
>

I understand your concerns, and I'll talk to kernel team, to see if we
can get this properly worked out and upstreamed.

Regards,

Dmitrijs.